1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11226d0c749c222ddf839ec2f252eb0ebe7a6be86d9381b0926cc9cfe3675de. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6cdbf44a-7793-41e2-90c4-cee567519260.json and https://artists.proofprofile.net/proofs/artist/6cdbf44a-7793-41e2-90c4-cee567519260.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd981b162d999b1e38e378207160f618c87325c1f951ec61d75306fd68b223de. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541631505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f864446ef379a6393cdb57f10c1af7d2b95327df23f38bba6a7bf0d23d66d9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:42:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198606.
Spooky Scary Skeletons - Spooky Swing Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b4729d234cdf55e5bab8c856ff33863f64d6661fbc8ad995944f5e81a718ab. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812100929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e5f64614229e1027ec2c27408b5d2cc120468030ce6bfc70d7f815822ef98a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812105213.
Dance of the Sugar Plum Fairy (Electro Swing Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ed3b57b4718d10def2a17e26ee73fe4fb781e585551012602cd2e4809f97c1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812363412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97a13c9db0e1f32adf85ddaa34523247b6d2580a84322337c8b9ce9a1646bdd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812410643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e774aa1c2b4d46ab989ed8edcd9cd6f1b3a0b54fec4b12b1fb6a3c21853e8e7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812198605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd981b162d999b1e38e378207160f618c87325c1f951ec61d75306fd68b223de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6541631505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366fed97f4b2968e16634729e9a7d9526add28d66bce8a8889bdcef186faf3e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812105212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ed3b57b4718d10def2a17e26ee73fe4fb781e585551012602cd2e4809f97c1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812363412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4db1f1e2e144b78b9b96e019bc7d4dd73f064530afd4cd485e8991b512cd0cc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542115189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31afe340d285562e9ff47db86233871e81eea65ee974d08837f74c68a03de482. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812357855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb419895f0ce8bc35d2684962184642e07dd8c3ed4ab1f7c4aa27307af88289d7. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812402077.
Dance of the Sugar Plum Fairy - Electro Swing Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d79bd6119a3a2365e2b5fe71741ecf4ea6fdf4682a34b45232b6110d94a7d51. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812235705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9125bcfc53d99fd5d97cc77db4953100bccaa9bc35f2c09593d8545517d5ab4b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812355685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5414236523a90f81247625d3875d309133fe536c0035470b48e6d018465c4351. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542146025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de2e175afd5978717fff14333bb16912c82724f3577fc1edc2210cd91f2266f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542082936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d68d311aa20ba88c981fb7e510cb98d31db4b868e833ee7a2237b1b2c243e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542165625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fba55c7c87ba5d3456ba21fd4402640b617865f6ae70faa85e918f60f922eae. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812107791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08186d74ad1f23265beb3fea1973efc39d825d4db3e96d7be4d7ce0a36f9155. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812234495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d9c897283d7de6843e4e63cefbe1fa7e13022fae17965e0af5f3c7f5207db1. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812419795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898c224030f4c009421f34bdf7d0b5a45602f7c9040bb7e46dc38604c52b5f2c. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812528845.
We No Speak Americano (Hyper Swing Flip)
Electro Swing Party Vol. 4 by Bart & Baker : The Cover Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5414236523a90f81247625d3875d309133fe536c0035470b48e6d018465c4351. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542146025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb419895f0ce8bc35d2684962184642e07dd8c3ed4ab1f7c4aa27307af88289d7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812402077.